Rice Lake Combination System - Precision Loads On-Board Weighing Systems - Manual (Page 73)

Appendix 69
6.8 5th Wheel Mounts for Pole Trailers and Dump Trailers
Fif
th
Wheel Block
ing f
or P
ole
Tr
ailers and End Dump
Tr
ailers
Install hea
vy dut
y c
oil
springs
, 3.00”
ID x 6.50”L,
o
ver 2.50”
OD x 5.50”L
w
elded pipe or r
ound bar
sec
tions (4 plac
es) t
o
block oscillation of 5th wheel plat
e during loading
Install load c
ells and t
or
que
bolts t
o 800-1000 lb/f
t
af
ter w
elds ha
ve c
ooled
.
Chassis bolts
,
washers and lock
nuts
, g
rade 8,
plat
ed
. U
se
chassis bolt hole patt
ern. M
inimum
6 bolts per angle
.
Fif
th Wheel
Plat
e
Holland or F
ontaine
Trunnion with Bushing
Unitiz
ed load c
ell
M
odel PL9000-50M
3/4 - 16 UNF x 1-1/2”
Hex
Head Bolts
, Grade 8,
Plat
ed with Plat
ed F
lat
W
asher
. T
or
que
to
380-400 lb/f
t